WO2008065407A1 - Roue de véhicule - Google Patents

Roue de véhicule Download PDF

Info

Publication number
WO2008065407A1
WO2008065407A1 PCT/GB2007/004581 GB2007004581W WO2008065407A1 WO 2008065407 A1 WO2008065407 A1 WO 2008065407A1 GB 2007004581 W GB2007004581 W GB 2007004581W WO 2008065407 A1 WO2008065407 A1 WO 2008065407A1
Authority
WO
WIPO (PCT)
Prior art keywords
wheel
hub
rod
vehicle wheel
hoops
Prior art date
Application number
PCT/GB2007/004581
Other languages
English (en)
Inventor
Vincente Osmar Rodrigues
Original Assignee
Royal College Of Art
Vincente Osmar Rodrigues
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from EP06256155A external-priority patent/EP1958793A1/fr
Application filed by Royal College Of Art, Vincente Osmar Rodrigues filed Critical Royal College Of Art
Publication of WO2008065407A1 publication Critical patent/WO2008065407A1/fr

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60B—VEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
    • B60B9/00—Wheels of high resiliency, e.g. with conical interacting pressure-surfaces
    • B60B9/26—Wheels of high resiliency, e.g. with conical interacting pressure-surfaces comprising resilient spokes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60B—VEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
    • B60B19/00—Wheels not otherwise provided for or having characteristics specified in one of the subgroups of this group
    • B60B19/04—Wheels not otherwise provided for or having characteristics specified in one of the subgroups of this group expansible

Definitions

  • US-A-3802743 describes a variable diameter wheel having a rim made up of individual segments. Each segment is supported by a piston that can be moved from a retracted position, where the wheel diameter is small, to an extended position, where the wheel diameter is large. This arrangement is used to allow vehicles to traverse the contours of a steep hill without tilting or tipping by making the wheel higher up the hill small and the wheel further down the hill large.
  • EP-A-0665128 describes a vehicle wheel having a number of sliders that can be extended by means of hydraulic pressure to increase the outer diameter of the wheel.
  • US-2004036347 describes a vehicle having a number of tyres, each having different road gripping characteristics.
  • a desired tyre is selected by inflating it so that it has a larger diameter than the other tyres and therefore engages the road in preference to the other tyres.
  • US-1980314 and GB-251256 disclose a vehicle wheel with a rim whose diameter can be reduced to simplify the changing of a tyre. Once the tyre has been fitted, the rim is expanded to its original diameter. Neither contemplates operating the wheel with the reduced diameter.
  • US-756290 discloses a wheel whose diameter can be adjusted by altering the length of adjustable wheel spokes.
  • GB-1078817 discloses a wheel having a segmented rim in which the segments of the rim are support on a two-part wheel hub by spokes that are not in alignment with the wheel radius.
  • the overall diameter of the wheel can be adjusted by means of the two-part hub; the parts of the hub can be pivoted about the wheel axis relative to each other and thereby bring the spokes into closer alignment with the wheel radius (thereby increasing the wheel diameter) or out of alignment with the wheel radius (thereby decreasing the wheel diameter).
  • US-2916331 discloses an elliptical wheel having a segmented rim whose segments are moved in an elliptical path to mimic a tracked vehicle.
  • the present invention provides a wheel of variable diameter which, in addition to changing its diameter, can also change its width, thereby increasing the area of the wheel that engages the ground.
  • the wheel of the present invention can be adjusted to increase a vehicle's performance according to the terrain over which it is travelling. For example, on a hard surface, a large diameter wheel with a low footprint area (i.e. area where the wheel and ground are in contact) can be used whereas on soft, yielding ground, a smaller diameter wheel with a larger width can be provided that has a larger footprint area and will prevent the wheel from sinking into the ground.
  • a variable diameter and width wheel for a vehicle having an axis of rotation and comprising: a rim, a hub configured for attachment to an axle or shaft, the hub comprising a first part and a second part that are both arranged on the said rotational axis, and at least one arching member having first and second ends and being connected at the first end to the first hub part and at the second end to the second hub part, wherein the arching member extends outwardly in an arc between the first and second hub members and forms or supports the wheel rim, wherein the first and second hub parts can be moved relative to each other to change the shape of the arc of the at least one arching member, and wherein the two hub parts are lockable in a fixed position relative to each other.
  • the tyre when the arched member is in the form of a tyre, the tyre can be pneumatically inflated, e.g. by including an inner tube within the tyre or by sealing a cavity within the tyre, e.g. the tyre may have a toroidal shape, enclosing a pressurisable annular cavity within the tyre, which would eliminate the necessity of a inner tube.
  • the first and second hub parts are movable with respect to each other and the direction of relative movement is, in one embodiment, along the said axis of rotation of the wheel.
  • at least one of the hub parts may be movable along a rod that lies on the rotational axis.
  • This movement can be achieved in a number of ways, e.g. by means of a pneumatic or hydraulic ram or by providing the rod with a screw thread that is engaged by the movable hub part so that the movable hub part may be driven along the rod by turning the rod, e.g. with the aid of a motor.
  • only one of the hub parts is movable while the other is not, e.g. it is in a fixed location with respect to a vehicle.
  • the present invention also provides a vehicle provided with one or more wheels as described above.
  • the primary use of the wheel of the present invention is for off road vehicles, for example agricultural vehicles, where varying under-wheel conditions may be encountered and where it is important that the wheels should not sink into the ground or compact the soil more than necessary and where the wheels can often slip in muddy conditions.
  • the wheel may be used both on vehicles that are self-propelled or those that are not. However, the wheel can also be used for on-road vehicles as well.
  • Figure 3 is an end view of the wheel of Figures 1 and 2;
  • Figure 4 is a perspective view of the wheel of Figures 1 to 3;
  • Figures 5 to 7 are perspective views of various parts of the wheel shown in Figure 4;
  • Figure 8 is a perspective view of part of a wheel in accordance with the present invention suitable for use on water to provide buoyancy to a vehicle and also to provide additional support and extra load-carrying capacity;
  • Figure 9 is a side elevation of the wheel in accordance with the present invention and is similar to that of Figure 4 but incorporates a floatation bladder as shown in Figure 8;
  • Figure 10a is a side elevation and Figure 10b is a perspective view of the wheel of Figure 4 but including a cover for use on water or land, especially on moisturized mud ;
  • Figure 12 is a sectional view through a rim of a wheel in accordance with the present invention.
  • Figure 13 is a view of a hub part of the wheel.
  • Figure 14 is an exploded perspective view of a second embodiment of the mechanism of the present invention for changing the diameter and width of a wheel;
  • Figure 15 is a detailed part of the mechanism shown in Figure 14;
  • Figure 16 shows the mechanism of Figure 14 fully assembled, but component 103 is shown partly broken away;
  • Figure 17 shows a wheel of the present invention, which incorporates the mechanism of Figures 14 to 16;
  • Figure 18 is a vertical sectional view of the wheel of Figure 17 but without the mechanism of Figures 14 to 17 and Figures 19 and 20 are exploded perspective view of many of the components of the wheel of Figures 14 to 18 showing two methods of attachment to a vehicle.
  • a wheel in accordance with the present invention that has a cage 24 composed of thirty six equi-spaced, radially extending hoops 7 that arch between a first hub part 20 and a second hub part 22.
  • a rod 1 extends through the first hub part 20 into the second hub part 22.
  • the hoops are made of helical steel springs steel filled by wire rope obtained by cutting the spring to the desired length and threading a section of wire rope with the same length and internal diameter as the spring through the centre of the spring.
  • the hoops may be made of any material that is strong, stiff and resilient enough to support the loads imposed on the wheels, while also being flexible to allow the diameter of the wheel to be changed as discussed below.
  • the rod 1 includes a section 26 at one end of the rod that incorporates a helical groove 27; the rod also includes a stop section 28 at the opposite end of the rod to the helical groove 27.
  • the wheel is constructed on the rod 1 and, starting from the left hand side of the rod as seen in Figures 1 and 2, there is a spacer cylinder 2, which is made of metal, e.g. steel, or of a strong plastic material, for example PPS (poly(p-phenylene sulfide), POM (polyoxymethylene) or a metallic polymer alloy, e.g. a pure iron powder uniformly dispersed in a insulating plastic binder.
  • the spacer cylinder 2 abuts the stop section 28 of the rod and limits the longitudinal movement of a cylinder 3, which has a central bore 30 that fits on the helical section 26 of the rod 1.
  • the cylinder 3 may conveniently be composed of plastic, e.g. PPS, POM or metallic polymer alloy although it can also be made of metal, for example steel.
  • the cylinder 3 has a flange 32 at one end that is secured to a circular connector 4 of hub part 20 by means of screws (see Figure 5) that pass through the flange 32 and engage in screw holes (not visible in Figure 1 and 6) in the hub connector 4.
  • the hub connector 4 includes thirty six equally spaced socket holes 34 around a cylindrical outer face. The socket holes 34 together accommodate one end of each of the hoops 7 that together form the cage 24. The ends of the hoops are secured in the holes by bolts (not visible) that are present in an array of holes 35 (see Figure 13) positioned on the external side of the hub connector 4, the bolts engaging the hoops perpendicularly.
  • the ends of the hoops may be secured by profiling their terminal ends and holding the profiled ends captive in correspondingly shaped sockets in the wheel hub connector 4.
  • the hub connector 4 may be made of a tough plastic material such as POM or metal, for example steel.
  • Rings 9 and 10 which may be made of metal, e.g. steel, are secured to the respective external faces of the hub connectors 4,5 via bolts passing though holes in the external rings 9, 10 and secured in corresponding blind threaded holes in the hub connectors 4, 5.
  • Internal rings 11, 12 are likewise secured via bolts to the inside faces of the hub connector 4, 5.
  • the bags provide a clamping arrangement for securing an internal inflatable bag 13; the bag fits within the cage 24 and the ends of the bag are clamped between the ring 11 and the hub connector 4, at one end of the bag, and between the ring 12 and the hub connector 5, at the other end.
  • the two ends of the inflatable bag 13 may be secured to bag rings 14, 15 and it is the bag rings 14, 15 that are clamped between the internal rings 11 , 12 and their respective hub connectors 4, 5, thereby providing a gas-tight seal around the two ends of the inflatable bag 13.
  • An external stretchable covering 16 can be placed outside the cage 24 and the two mouths of the covering may be clamped between the rings 9, 10 and their respective hub connectors 4, 5.
  • Awheel including such a stretchable covering is shown in Figures 10a and 10b.
  • the external stretchable cover 16 is used to provide buoyancy to the wheel when used in connection with an amphibious vehicle. It will adapt to the shape of the cage 24 when the shape of the wheel is altered, as described below, without the necessity of being inflated. Both the internal bag 13 and the external cover 16 may be used.
  • a series of spacer elements 8 are provided on alternate hoops 7 to keep the hoops separate and prevent them from becoming entangled with each other.
  • Figure 6 while the cage itself is shown in Figure 7.
  • Figure 8 shows the wheel without the cage but including the internal bag 13, which is shown partially inflated.
  • Figure 9 shows the wheel of Figure 8 but with the cage 24 and
  • Figure 10 shows the wheel covered by the covering 16.
  • a clutch arrangement (or other manner of breaking and forming the drive between the rod 1 and the gearbox) can be interposed between the rod 1 and the motor/gearbox so that the rod can be decoupled from the motor/gearbox while the vehicle is in motion and coupled to the motor/gearbox while the diameter/width of the wheel is being changed.
  • the rod 1 rotates with the rest of the wheel when the vehicle is in motion. Therefore, it is possible to change the diameter/width of the wheel in accordance with the present invention while the wheel is still fitted to a vehicle. If the hub part 20 is moved along the rod 1 by another mechanism, e.g. a pneumatic or hydraulic ram, then it would be possible to change the diameter/width of the wheel while it is still moving.
  • the motor can remain coupled to the gears at all times using an arrangement having the threaded rod 101 rotating around the solid rod 160, as discussed in further detail below.
  • the hoops can be replaced by a single hollow tyre of annular shape.
  • the inner rim 52 can be clamped to the hubs 20, 22.
  • a tyre can be formed, for example, by embedding the hoops 7 in a flexible material, for example, hardened (e.g. vulcanised) rubber.
  • the tyre may be inflatable internally, in which case the internal cavity may be sealed or an inflatable inner may be provided, if necessary.
  • the cross section of the tyre may be closed, e.g. by a flexible wall shown schematically by broken line 53 in Figure 12, forming an annular cavity 55 within the torus-shaped tyre.
  • the flexible wall may be a concertina or bellows wall, such as a wall 200 described in connection with Figure 18.
  • the tyre may be sufficiently resilient to support the weight of the vehicle without internal pneumatic pressure as a result of the strength of the sidewalls of the tyre.
  • FIG 14 parts having the same function as the parts in Figure 1 embodiment are indicated by the Figure 1 reference number plus 100 so that, for example, the hub part 20 of the Figure 1 embodiment becomes the hub part 120 of the Figure 14 embodiment.
  • the threaded rod 101 is, in Figure 14, hollow and contains a solid rod 160; the solid rod 160 is held by the two hub parts and the threaded rod 101 is rotatable about the fixed rod 160.
  • the left hand hub part 120 shown in Figures 14 and 15 includes a hub connector 104, which consists of an outer ring 104a and an inner nine-segment ring 104b.
  • the hoops 107 have shaped terminal ends that fit within correspondingly shaped recesses 162 in the rings 104a and 104b.
  • the rings are bolted together by passing bolts through the though-holes 164b in the ring 104b to engage in threaded blind holes 164a in ring 104a.
  • the end of the tube fits snugly in the flanged sleeve 174, which is thereby supported and positioned by the tube 171.
  • a bearing 106' is used, it can be replaced by a flanged collar since the rod 160 does not rotate within the bearing 106' and the bearing is used to match bearing 106 and avoid the stocking of an additional part for the wheel.
  • Holes are provided in the flange 173 of the sleeve 174 and corresponding holes are provided in the plate 172 and a flange on the bearing 106; these components are secured to the outer ring 105a by means of bolts passing through the holes.
  • the width of a wheel having a mechanism as shown in Figures 14 to 16 can be increased or decreased by increasing or decreasing the separation between the hub parts 120, 122 by means of the electric motor 176 and the rod 101.
  • a reduction of the distance between the hub parts 120, 122 decreases the width of the wheel and increases its height, while an increase in the distance between the hub parts 120, 122 increases the width of the wheel and reduces its height.
  • the inner rod 160 is secured to the hub part 105a.
  • the rod 160 is held at one end by a bearing 250, which allows all the components of the wheel, including the rod 160, to rotate when the wheel turns.
  • the rod 160 may be stationary with respect to the vehicle and the rest of the wheel rotates about the rod 160.
  • the bearing 250 is connected to a fixed axle 255 ( Figure 19) or a suspension 260 ( Figure 20).
  • the motor 176 rotates the gears 178, 180, which in turn rotate the grooved rod 101.
  • These are the only components to rotate during the adjustment of the wheel width and diameter.
  • the rotation of the rod 101 causes the hub part 104 to move towards or away from the hub part 105 as has already been described, thereby causing the height of the hoops 107 to increase or decrease, depending on whether the hub part 104 is brought closer to, or pushed away from hub part 105 (respectively).
  • the rod 180 turns with the helically grooved rod 101.
  • a covering 116 e.g. made of vulcanised rubber, provided with a tread may be used as shown in Figure 17.
  • parts of hoops 107 are shown, which pass through slots or openings in raised elements 190 of the covering.
  • Such an arrangement provides not only for the separation of the hoops in place as separators 8 as shown in Figure 2 but also provides a tread to the tyre. This can be achieved by threading the hoops through the slots or openings in the raised elements 190 before being secured in one or other or both of the hub connectors 104, 105.
  • the wheel includes a telescopic tube 192 made of metal, steel or strong plastic.
  • the telescopic tube 192 protects the internal mechanism from dirt and prevents contact between it and the tyre 116 or hoops 107, to prevent the mechanism being damaged in use.
  • the tube is provided with end plates 194 that are bolted to the outside of the hub parts 120, 122 using bolt holes visible in Figure 19 in the hub connector part 105a and corresponding bolt holes in the end plates 192.
  • the telescopic tube can expand and contract in length as the wheel changes its configuration between large diameter/narrow and small diameter/wide.
  • the tyre of Figure 18 may also include a bellows or concertina arrangement 200 formed by five small diameter steel rings 202 and three large diameter rings 204, which are linked together by flexible segments 206, which may be made of rubber, thereby forming the bellows 200.
  • the outer rings 202 of the bellows may be secured to a flange 203 (see also Figure 19) to seal the bellows with respect to the tyre 116 to provide an annular airtight compartment 208 between the bellows 200 and the tyre 116.
  • the hoops 107 do not extend through the airtight compartment 208 but rather extends outside the covering 116 and the compartment through the raised elements 190 (see Figure 17).
  • the compartment 208 can be inflated though a valve of conventional design (not shown) to support the wheel.
  • the bellows can extend and contract as the wheel is moved between its small diameter and large diameter configurations.
  • the wheel of Figures 14 to 18 is secured to a vehicle in the same manner as described above with respect to the wheel of Figures 1 to 13 or as illustrated in Figures 19 and 20.
  • the area of the wheel that is in contact with the ground (which will be referred to as the "footprint" of the wheel) is greater than is the case when the diameter of the wheel is relatively large and the width is relatively small.
  • the change of diameter of the wheel will also affect the ability of the wheel to grip the ground and therefore affects the drive that is able to be transmitted through the wheel.
  • a large footprint is desirable to increase the drive of the wheel and decrease slippage, which can be achieved by increasing the width of the wheel and reducing the diameter.
  • the change of the diameter of a driven wheel will obviously affect the speed of the vehicle, for a given engine speed and gear box setting.
  • the smallest diameter wheel will tend to drive the vehicle at a slower speed than the largest diameter wheel.
  • the larger diameter wheel is likely to provide lower fuel usage.
  • the smaller diameter/wider wheel will tend to dig into broken ground less than the larger diameter wheel and this will reduce its tendency to "plough” into the ground and therefore reduce its resistance in rolling over the ground.
  • the wheel of the present invention finds particular application for agricultural transportation or in other applications in which a vehicle moves over open ground and off road driving. It can be attached either to a driven axle or shaft of a vehicle or to a non-driven axle or shaft, i.e. it is an idling wheel.
  • the idling wheel can either be part of a self- propelled vehicle or a non-self propelled vehicle e.g. a trailer.
  • the wheels of the present invention can form all or only some of the wheels of the vehicle.
  • Two or more wheels in accordance with the present invention could be attached side by side along the same axle or shaft, thereby increasing the thrust achievable by the wheel and halving the pressure exerted by the wheel on the ground.
  • the wheels can be operated independently and adopt different configuration. For example, one could be of a relatively large width/small diameter while the other could be of a relatively small width and large diameter. Such an arrangement will improve the thrust and decrease the slippage provided by the wheel having the relatively large diameter while, at the same time, improving the weight distribution through the smaller diameter/larger width wheel.
  • the present invention can also be applied to track vehicles such that the track passes around one or more of the wheels of the present invention.
  • the speed of the vehicle can be altered by changing the diameter of a wheel of the present invention when acting as a track drive wheel.
  • the width of the wheel at its maximum can be approximately three times the width at its minimum.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Tires In General (AREA)

Abstract

L'invention concerne une roue de véhicule à diamètre/largeur variable munie d'un axe de rotation ; d'une jante ; d'un moyeu conçu pour être fixé à un axe ou à un arbre, ledit moyeu présentant une première partie (20) et une seconde partie (22) toutes deux disposées sur ledit axe de rotation ainsi que des éléments arqués (7) présentant une première et une seconde extrémité et reliés au niveau de la première extrémité à la première partie de moyeu et au niveau de la seconde extrémité à la seconde partie de moyeu, de telle sorte que les éléments arqués s'étendent vers l'extérieur en un arc situé entre le premier et le second élément de moyeu et forment ou supportent la jante de la roue. La première et la seconde partie de moyeu (20, 22) peuvent être rapprochées ou éloignées l'une de l'autre pour changer la forme de l'arc des éléments arqués (7) ; les deux parties de moyeu peuvent être verrouillées dans une position fixe l'une par rapport à l'autre pour maintenir une forme d'arc donnée. Le déplacement des parties de moyeu (20, 22) l'une vers l'autre agrandit ou amincit la forme d'arc des éléments arqués, augmentant ainsi le diamètre de la roue et diminuant ainsi sa largeur, alors que l'éloignement des parties de moyeu (20, 22) raccourcit ou rallonge la forme d'arc, diminuant ainsi le diamètre et augmentant la largeur de la roue.
PCT/GB2007/004581 2006-11-29 2007-11-29 Roue de véhicule WO2008065407A1 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
EP06256093.3 2006-11-29
EP06256093 2006-11-29
EP06256155.0 2006-12-01
EP06256155A EP1958793A1 (fr) 2006-12-01 2006-12-01 Roue de véhicule

Publications (1)

Publication Number Publication Date
WO2008065407A1 true WO2008065407A1 (fr) 2008-06-05

Family

ID=38982875

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/GB2007/004581 WO2008065407A1 (fr) 2006-11-29 2007-11-29 Roue de véhicule

Country Status (1)

Country Link
WO (1) WO2008065407A1 (fr)

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8141606B2 (en) 2009-05-29 2012-03-27 The Goodyear Tire & Rubber Company Tire
US8662122B2 (en) 2010-05-14 2014-03-04 The Goodyear Tire & Rubber Company System for non-pneumatic support of a vehicle
US8720504B2 (en) 2011-06-17 2014-05-13 The Goodyear Tire & Rubber Company System for non-pneumatic support of a vehicle
KR101522796B1 (ko) * 2013-12-17 2015-05-27 서울대학교산학협력단 지름 가변형 휠
GB2526314A (en) * 2014-05-20 2015-11-25 Dublin Inst Of Technology A wheel
KR20160040792A (ko) * 2014-10-06 2016-04-15 현대자동차주식회사 가변형 타이어
US9616713B2 (en) 2010-08-30 2017-04-11 The Goodyear Tire & Rubber Company Non-pneumatic tire
CN111216491A (zh) * 2020-02-28 2020-06-02 山东大学 一种轮径可调节的车轮结构及车辆
CN111216490A (zh) * 2020-02-28 2020-06-02 山东大学 一种宽度与刚度可调节的车轮结构及车辆
CN113276986A (zh) * 2021-06-10 2021-08-20 辽宁工程技术大学 一种基于水弹轮结构的多连杆行走机构
CN113500883A (zh) * 2021-07-26 2021-10-15 西南大学 一种可变宽度车轮

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US756290A (en) * 1902-09-15 1904-04-05 Robert Cooke Sayer Wheel.
GB251256A (en) * 1925-04-23 1926-11-11 Alfred Wang Improvements in wheels for vehicles
US1980314A (en) * 1931-12-22 1934-11-13 Antonio Cardona Automobile wheel
US2916331A (en) * 1958-07-16 1959-12-08 Benjamin F Gardner Flexible wheel
GB1078817A (en) * 1964-06-10 1967-08-09 John Dudley Wells Gregg Improvements in or relating to road wheels for vehicles
US3802743A (en) * 1972-04-17 1974-04-09 Spector G Variable diameter wheel
EP0665128A1 (fr) * 1994-01-28 1995-08-02 Matsushita Electric Industrial Co., Ltd. Roue à diamètre extérieur variable et véhicule pourvu d'une telle roue

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US756290A (en) * 1902-09-15 1904-04-05 Robert Cooke Sayer Wheel.
GB251256A (en) * 1925-04-23 1926-11-11 Alfred Wang Improvements in wheels for vehicles
US1980314A (en) * 1931-12-22 1934-11-13 Antonio Cardona Automobile wheel
US2916331A (en) * 1958-07-16 1959-12-08 Benjamin F Gardner Flexible wheel
GB1078817A (en) * 1964-06-10 1967-08-09 John Dudley Wells Gregg Improvements in or relating to road wheels for vehicles
US3802743A (en) * 1972-04-17 1974-04-09 Spector G Variable diameter wheel
EP0665128A1 (fr) * 1994-01-28 1995-08-02 Matsushita Electric Industrial Co., Ltd. Roue à diamètre extérieur variable et véhicule pourvu d'une telle roue

Cited By (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8141606B2 (en) 2009-05-29 2012-03-27 The Goodyear Tire & Rubber Company Tire
US8662122B2 (en) 2010-05-14 2014-03-04 The Goodyear Tire & Rubber Company System for non-pneumatic support of a vehicle
US9616713B2 (en) 2010-08-30 2017-04-11 The Goodyear Tire & Rubber Company Non-pneumatic tire
US8720504B2 (en) 2011-06-17 2014-05-13 The Goodyear Tire & Rubber Company System for non-pneumatic support of a vehicle
KR101522796B1 (ko) * 2013-12-17 2015-05-27 서울대학교산학협력단 지름 가변형 휠
US9415631B2 (en) 2013-12-17 2016-08-16 Snu R&Db Foundation Variable diameter wheel
GB2526314A (en) * 2014-05-20 2015-11-25 Dublin Inst Of Technology A wheel
KR102137829B1 (ko) * 2014-10-06 2020-07-27 현대자동차주식회사 가변형 타이어
KR20160040792A (ko) * 2014-10-06 2016-04-15 현대자동차주식회사 가변형 타이어
CN111216491A (zh) * 2020-02-28 2020-06-02 山东大学 一种轮径可调节的车轮结构及车辆
CN111216490A (zh) * 2020-02-28 2020-06-02 山东大学 一种宽度与刚度可调节的车轮结构及车辆
CN111216491B (zh) * 2020-02-28 2021-07-09 山东大学 一种轮径可调节的车轮结构及车辆
CN111216490B (zh) * 2020-02-28 2022-02-08 山东大学 一种宽度与刚度可调节的车轮结构及车辆
CN113276986A (zh) * 2021-06-10 2021-08-20 辽宁工程技术大学 一种基于水弹轮结构的多连杆行走机构
CN113500883A (zh) * 2021-07-26 2021-10-15 西南大学 一种可变宽度车轮
CN113500883B (zh) * 2021-07-26 2022-08-26 西南大学 一种可变宽度车轮

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